2478520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 6272640

約数和(自身を除く): 3794120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 131, 172, 215, 220, 262, 344, 430, 440, 473, 524, 655, 860, 946, 1048, 1310, 1441, 1720, 1892, 2365, 2620, 2882, 3784, 4730, 5240, 5633, 5764, 7205, 9460, 11266, 11528, 14410, 18920, 22532, 28165, 28820, 45064, 56330, 57640, 61963, 112660, 123926, 225320, 247852, 309815, 495704, 619630, 1239260, 2478520]

約数ペア:

[(1, 2478520), (2, 1239260), (4, 619630), (5, 495704), (8, 309815), (10, 247852), (11, 225320), (20, 123926), (22, 112660), (40, 61963), (43, 57640), (44, 56330), (55, 45064), (86, 28820), (88, 28165), (110, 22532), (131, 18920), (172, 14410), (215, 11528), (220, 11266), (262, 9460), (344, 7205), (430, 5764), (440, 5633), (473, 5240), (524, 4730), (655, 3784), (860, 2882), (946, 2620), (1048, 2365), (1310, 1892), (1441, 1720)]